All Cast
Boris Karloff
Dr. Thomas Bolton
Betta St. John
Susan
Christopher Lee
Resurrection Joe
Finlay Currie
Supt. Charles Matheson
Adrienne Corri
Rachel
Francis de Wolff
Black Ben
Francis Matthews
Jonathan Bolton
Frank Pettingell
Mr. Blount
Basil Dignam
Hospital Chairman
Nigel Green
Insp. Donovan
Yvonne Romain
Rosa (as Yvonne Warren)
Howard Lang
Chief Inspector
Charles Lloyd Pack
Hardcastle
Bernard Archard
Hospital Official
Marianne Stone
Arrested Woman (uncredited)
Desmond Llewelyn
Operations Assistant (uncredited)
